{"product_id":"oem-goodman-primary-limit-temperature-control-for-gmh950453bxab-20162904","title":"OEM Goodman Primary Limit Temperature Control for GMH950453BXAB — 20162904","description":"\u003ch2\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162904 is a genuine OEM primary limit temperature control for the GMH950453BXAB furnace and compatible Goodman\/Amana high-efficiency models. Mounted on the heat-exchanger bulkhead, this control continuously monitors supply-air temperature and opens the burner circuit if the furnace overheats — typically due to restricted airflow from a dirty filter, closed vents, or a failing blower. It is the main high-limit safety on the furnace and normally resets automatically once temperatures return to a safe range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit temperature control\u003c\/li\u003e\n\u003cli\u003eFunction: Automatic over-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003eMounting: Heat-exchanger \/ blower bulkhead\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (self-resetting)\u003c\/li\u003e\n\u003cli\u003eFit: Goodman GMH950453BXAB and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is factory-calibrated to the GMH950453BXAB's specific trip temperature and mounting footprint. Genuine OEM ensures the control opens at the engineered threshold; a generic replacement with the wrong setpoint can cause nuisance lockouts or fail to protect the heat exchanger. For this safety-critical part, OEM is the right call.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate (2–3\/5)\u003c\/strong\u003e — Disconnect power, remove two mounting screws, transfer the wire terminals, and reinstall. Correct orientation on the bulkhead matters for accurate sensing. About 20 minutes for a confident DIYer.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eConfirm the part number on your existing control before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058111005043,"sku":"GOODMAN-11099","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-gmh950453bxab-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}